Train control inductor



-.lune 21, 1932. D. H. scHWEYER TRAIN CONTROL INDUCTOR Original Filed Sept. 27, 1929 ,g1/miento@ 1 Patented June 21, 1932 PATENT FFEC DANIEL HERBERT SCHWEYER, 0E' EASTON, PENNSYLVANIA TRAIN vCONTROL IN DUCTOR Original application iiied September 27, 1929, Serial No. 395,682. Divided and this application led. August 21, 1930. Serial No. 476,852.

This invention relates to railway trac controlling systems and apparatus used in connection therewith, and applies more particularly to a train control system in which inductive transmitting devices are located on the trackway and controlled by traiilc conditions, and other inductive devices are located on the trains or vehicles and co-act with the trackway devices to secure the control desired. More specifically, this invention includes a trackway inductor or magnet having a winding controlled by traliic conditions and mounted on the trackway adjacent to and parallel with the running rail, and a vehicle-carried receiver is adapted to pass over the trackway inductor with a desired clearance so that an inductive impulse or eiiect may be transmitted between the trackway device and vehicle device.

The reliability of apparatus of this kind depends upon the air gap between the trackway device and the vehicle device. A uniform relation between the poles of the trackway inductors and the vehicle receiver is desirable and rather essential for .the satisfactory operation of the system as the vehicle proceeds along thetrack. There are a number of conditions that arise vin railway practice which tend to impair this uniform relation and thereby lessen the reliability of the apparatus. Vhen the track inductor is mounted upon the ends of the ties its relation to the rail varies as the rails become embedded in the ties and as the ties warp and become distorted with the result that the track inductor ceases to be parallel with the rail and therefore becomes positioned out of alinement with the vehicle track.

l/Vith the obj ect of compensating for these conditions, I have provided an adjustable means of securing the track inductor to the running rail.

lVith the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein- Figure l is a plan view of a track inductor supported from a track rail.

Fig. 2 is a side elevation of said inductor and its mounting, portions being shown in section.

Fig. 3 is an end view of the track inductor, the housing being shown in section on the line 3 3 of Fig. 2.

Fig. l is a side elevation of the rail clamp.

Fig. 5 is an elevation of the mounting plate for the track inductor.

Fig. 6 is a plan view of the track inductor yoke and winding.

in the drawing 11 indicates the track rail which is secured on the ties 12, and 18 indicates generally the track inductor which has the ramped or sloping ends 14. The track inductor is mounted upon the truss brackets 15-16 which are preferably composed of angle bars suitably spaced and secured together, asat 17. Such brackets occupy comparatively little space between the ties and do not prevent the usual tamping of the ballast.

The inner ends of the upper horizontal flanges of the angle bars are bent back upwardly to form hooks 18 to engage the inner 'edge portion of the base of the rail, and the vertical flanges of the angles are bent apart, as at 19 to receive hook bolts 23. A. saddle 20 is disposed across each bracket at the outer side of the rail and has downwardly bent back lugs 21 engaging under the upper flanges of the angle bars, as seen in Fig. il.

The saddle 2() has a flange 22 overlapping' the outer edge portion of the rail base, and the hooks of the bolts 23 engage over the projecting terminals of the flange 22, to draw the saddle tightly into engagement with the upper inclined surface of the rail base.

With such construction of rail clamps the bracket 15-16 may be secured to rails of dierent sizes at any longitudinal point thereof, without requiring drilling or other previous preparation of the rail, and the brackets may also be conveniently removed by releasing the bolts 23, thereby saving labor and facilitating the installation and adjustment of the trackway device.

The track inductor is secured, as at 29, on supporting plates 25 which are clamped between the outer terminals of the angle bars 15, 1G, said plates having vertical slots 26 receiving the clamping bolts 27 which pass through the angle bars and plates. Saidangle bars have slots 27a for said bolts, so that the slots 26 and 27a provide for both vertical and transverse adjustment of the track inductor, relatively to the gage side of the rail.

The track inductor is mounted in a housing 28 of non-magnetic material, preferably a. phosphor bronze casting. The track inductor comprises a laminated core 34 with enlarged laminated poles 35 and provided with solid iron pole pieces or plates 32 and 33 at the opposite ends which are exposed through openings in the top of the housing or casing. V

A winding 30 is provided on the core 34 and has its terminals located at one side, as at 3l.

The core is secured in the housing 28 by bolts 87 which pass through the side walls of the housing, the poles of the core having slots 38 to receive said bolts. The bolts 37 also engage the removable cover 87 of the housing` forming one side wall thereof. The bolts hold both the cover 36 and inductor in place, and by removing the nuts from the bolts the cover 36 may be removed to permit convenient removal of the inductor from the housing.

The cover 36 has ak pocket 39 to receive the terminal block 3l of the coil.

The inductor may be either of the inert type, to receive t-he magnetic field by induction only, or said inductor may be of the magnetic type by having the coil energized.

As seen in Fig. 8 the poles of the track inductor are located above the plane of the tread of the track rails, in order to place the inductor in a more favorable position to iniuence the vehicle receiver, by reducing the air gap, than the iron elements of the track- Way itself, particularly the running rails at turnout switches and crossing frogs. llhe arrangement is therefore such that the vehicle carried receiver is selectively responsive to the track inductors only.

The supporting plates 25 and inductor housing 28 have insulation 29a between them, to insulate the inductor from the track rail.

This application is a division of application Serial No. 395,682, led Sept. 27, 1929.

Having thus described the invention, what is claimed as new is:

l. A support for a track inductor comprising a pair of angle bars secured together as a unit and spaced apart to form a truss, means for clamping said bars to the base of a track rail, and means for securing an inductor on said bars.

2. A support for a track inductor comprising a pair of spaced angle bars secured together as a unit, means for clamping said bars to the base of a track rail and at right angles to the track rail, and an inductor supporting member clamped between said bars.

3. A support for a track inductor comprising a bracket having one end Jformed with a hook to engage one edge portion of a rail base, a saddle sliding on the bracket adapted to engage the opposite edge portion oi? the rail base, and means for securing an inductor to said bracket.

4. A support for a track inductor comprising a bracket having a horizontal flange with one end-bent upwardly to provide a hook to engage one edge portion of a rail base, said bracket having a vertical flange with a portion bent at an angle, a saddle mounted slidably on the bracket to engage the opposite edge portion of the rail base, and means connecting said saddle and bent portion of the vertical flange.

5. A support for a track inductor comprising a pair of brackets having means to clamp the. base of a track rail, and inductor supporting members mountedon said bracket and slotted for adjustment vertically.

6. An inductor device comprising a housing of non-magnetic material, an inductor comprising a magnetic yoke with enlarged poles and a winding between said poles mounted in said housing, said housing having a removable side cover permitting the inductor to be placed in and removed from said housing, and means for securing said yoke andk cover.

V7. A support for a track inductor comprising a bracket having means for engaging one edge of the rail base and sliding means mounted on said bracket adapted to engage` the `opposite edge of the rail baise and means for holding said engaging means in engagement with the rail base and means for securing an inductor to said bracket.

8. A support for a track inductor comprising a pair of brackets, means for clamping said brackets to the base of the track ra-il and an inductor supporting member mounted on said bracket and adjustable vertically and horizontally with relation to the rail. 9. A support for a track inductor comprising a bracket having means for engaging one edge of the rail base and sliding means mounted on said bracket adapted to engage the opposite edgeV of the rail base and bolts engaging said bracket and said sliding means to clamp said bracket to the rail and means for securing an inductor to said bracket.

10. A support for a track inductor comprising a bracket formed of a pair of angle irons spaced to form a truss,r means for clamping said bracket to the base of the track rail, a plate adjustably clamped between said angle irons and an inductor secured to said plate.

11. A lsupport for a trackway device comme ans independent of said bracket for clamping said bracket to the base of the track rail comprising a sleeve slidabl engaging said bracket and engaging the ase of the rail, means for clamping said sleeve to the base of the rail and means for adjustably mounting the device on said bracket.

l2. An inductor device comprising a housing of non-magnetic material, an inductcr comprising a magnetic yoke with a Winding and poles mounted in said housing, said housing having a removable side permitting said inductor to be placed in and removed from said housing and bolts passing through slotted apertures in said poles for holding said side in place.

In testimony whereof I hereunto ax my signature.

DANIEL HERBERT SCHVEYER. 

